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Table 1 Subdivision of yp T3 status

From: Stage II/III rectal cancer with intermediate response to preoperative radiochemotherapy: Do we have indications for individual risk stratification?

ypT3a

Residual Tumor Infiltration into the Mesorectum < 1 mm

ypT3b

Residual Tumor Infiltration into the Mesorectum > 1 - 5 mm

ypT3c

Residual Tumor Infiltration into the Mesorectum > 5 - 15 mm

ypT3d

Residual Tumor Manifestation into the Mesorectum > 15 mm